IBM 270, Service Manual

Page: 252 / 622

Position FRU name
Possible failing
component
Type, CCIN, or part number
(use the Type, model, and
part number list to
determine the part number
when the type or CCIN are
given.)
Remove and
replace/recovery
procedure
DB2 and DB3 Device board Disk unit
backplane
See the Type, model, and
part number list.
Go to Models 270, 800,
and 810 - Device board -
DB1, DB2, and DB3.
P02 Power supply Power supply See Final assembly —
Models 270, 800, and 810
System Unit Expansion.
Go to Models 270, 800,
and 810 - Power supply -
P02.
B03 AMD AMD 04N5698 Go to Models 270, 800,
and 810 - Air moving
device - B03.
Locations — Models 800 and 810
For use by authorized service providers.
This page includes a table with links to diagrams and tables for Models 800 and 810 by feature codes. If
you need address information, refer to Addresses — Models 800 and 810.
Table 1. Models 800 and 810 diagrams and tables by processor feature code
Processor
feature code
Locations
diagram
FRU positions
and failing
components
Network
interface
controller (NIC)
is in this FRU
Processor is in
this FRU
HSL loop
number and port
information
7428, 7430 See Figure 1.
Model 810 system
unit, processor
features
7428, 7430 (See
page 241) below
See Table 3. FRU
locations and
failing
components for
Model 810
(processor
features
7428, 7430) (See
page 241), below
Embedded in the
processor card in
position M02
Embedded in the
processor card in
position M02
Loop number 256
has external HSL
ports labeled
″
A0
″
and
″
A1
″
Processor feature
codes (except
processor
features
7428, 7430)
See Figure 2.
Models 800 and
810 system unit,
except processor
features
7428, 7430 (See
page 244), below
See Table 5. FRU
locations and
failing
components for
Models 800 and
810 (except
processor
features 7428,
7430) (See page
245), below
Embedded in the
system unit
backplane in
position MB1
Embedded in the
system unit
backplane in
position MB1
Loop number 256
is an internal loop
embedded in the
system unit
backplane. The
loop goes from
the NIC, to the
embedded HSL
I/O bridge, and
back to the NIC
with no external
HSL ports.
Loop number 257
has external HSL
ports labeled
″
A0
″
and
″
A1
″
240
Hardware (Remove and Replace; Part Locations and Listings)